Mustafa O. Jibrin and Usman Rabiu Bello Archives - Pecan South MagazinePecan South magazine | The pecan industry's leading publication, published monthly for pecan producers, processors and all others involved or interested in the pecan industry.

Figure 1A. Leaf spot disease on Carya illinoinensis and morphology of Neopestalotiopsis chrysea. (A) Infected Carya illinoinensis leaves; (B-C) fungal colony on PDA (Potato dextrose agar-a medium used in the laboratory for culturing microbes, especially fungi), 5 d growth from single conidia, from above and below; (D) conidia; Bars of D=10mm; (E) conidiogenous cells; Bars of E=10mm; (F) conidial masses; Bars of E=200mm; (G) pathogenicity test; leaf spot symptoms on detached leaves; (H-I) leaf spot symptoms on potted seedlings. (Pictures and picture description were obtained from Wu et al., 2020)

by Mustafa O. Jibrin and Usman Rabiu Bello Southeastern Shakings

The Emerging Faces of Pecan Leaf Spots Outside of the United States and Implications for American Pecan Production Systems

Introduction Leaf spots on pecans are known to come in different forms and shapes. The more common spot diseases known to occur in the US pecan production landscape are pecan brown spot caused by Cercospora fusca, Gnomonia leaf spot caused by Gnomonia nerviseda (or G. dispora), downy spot caused by Mycosphaerella caryigena, zonate leaf spot...